376 OHIO STATE ACADEMY OF SCIENCE. 
Polygyra albolabris (Say, Helix). 
Over the state, common and variable. On the lake islands 
(Put-in Bay, Kelley’s) Allen found a reddish form, 
constant, in the marshy lowlands; minor Sterki, form or 
var., at New Philadelphia (St.). 
Polygyra zaleta (Binney, Helix), exoleta. 
Columbus; Cincinnati; Medina and Defiance Counties (St.); 
Put-in Bay and Kelley’s Islands, uplands (Allen); 
probably over most of the state, yet wanting over wide 
stretches, e. g. not found in Tuscarawas Co. 
Polygyra thyroides (Say, Helix). 
Over the state, common in most parts. 
Polygyra clausa (Say, Helix). 
Cincinnati; Columbus;. Lorain Co., cited as rare, by Dr. 
Hubbard, in litt., 1858. =o Wags 
Polygyra mitchelliana (Lea, Helix). 1 Bi? 
Cincinnati; Columbus; Portage Co. (Dean, Streator); 
Harrison and Tuscarawas Counties (St.); Defiance (St.) 
Polygyra pennsylvanica (Green, Helix). 
Cincinnati; Columbus; Cuyahoga Co. (Allen); Tuscarawas 
Co. (St.); probably over the state. 
Polygyra elevata (Say, Helix). 
Cincinnati; Columbus; Defiance (St.); probably over at 
least the southern and western parts of the state. 
Polygyra dentifera (Say, Helix). x 
Cimcmnati (Byrnes); “Obio,” t W..G. Binney. 
Polygyra appressa (Say, Helix). 
Cincinnati. 
Polygyra obstricta (Say, Helix). 
Cited from the state (W. G. Bmney); 1] have’ seenens 
specimens. 
Polygyra palliata (Say, Helix). 
Over the state; albinos are found occasionally. 
Polygyra inflecta (Say, Helix). 
Over the state. 
Polygyra fraudulenta Pilsbry, Helix, Triodopsis fallax auctt. 
Over the state, common. 
Polygyra tridentata (Say, Helix). 
Over the state, common and variable. Specimens ,from 
various places have the peristome without teeth, or 
with mere traces of such, but do not constitute a 
variety. 
Polygyra tridentata discoidea Pilsbry. 
Cincinnati. 
Polygra stenotrema (Say, Helix.). 
Cincinnati. 
